Best practises for alerting contacts not shared to one sheet

Hi all ,

AS a project manager , I want to share information to stakeholders which are not necessarily predefined in my contact list or not set as preferred contact in the contact list column .

I have set the restrictions level to "unrestricted" so that I can add any contact to the distribution list for a certain type of information to share , but when I type emails separated by semicolons , the automation does not work ( people in the contact list column are supposed to be alerted when I add new information ) .

Can you share to me a good practise which works ?

Regards .